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  • 19" LCD Color Monitor Dell 1908FPC

    1

    Service Service Service

    Horizontal Frequency 30 kHz to 81 kHz

    Table of Contents Description Page Description Page

    SAFETY NOTICE

    ANY PERSON ATTEMPTING TO SERVICE THIS CHASSIS MUST FAMILIARIZE HIMSELF WITH THE

    CHASSIS AND BE AWARE OF THE NECESSARY SAFETY PRECAUTIONS TO BE USED WHEN SERVICING

    ELECTRONIC EQUIPMENT CONTAINING HIGH VOLTAGES.

    6. Mechanical Instructions..........................................25

    7. Schematic Diagram..............................327.1 Main Board................................................327.2 Power Board....................................377.3 USB Board....397.4 Key Board..408. PCB Layout............................................................418.1. Main Board........................................418.2. Power Board.........................................448.3. Key Board.....................................458.4 USB Board..469. Maintainability.........................................469.1.Equipments and Tools Requirement.............469.2.Trouble Shooting............................4710.White-Balance, Luminance adjustment.........5311.ISP Instruction..................................5412. Monitor Exploded View.............6113. BOM List....................................................6214. Different Parts List....77

    CAUTION: USE A SEPARATE ISOLATION TRANSFOMER FOR THIS UNIT WHEN SERVICING

    Table Of Contents...........................................1Revision List................................................2 ECN History................................................3

    Important Safety Notice...........................41.Monitor Specifications.....................................5 2.LCD Monitor Description.......63.Operation Instructions..........................73.1.General Instructions.73.2.Control Buttons..............................83.3 Adjusting the Picture......................104. Input/Output Specification.....................164.1.Input Signal Connector.............................164.2.Factory Preset Display Modes...........................174.3.Power Supply Requirements.............................174.4.Panel Specification.......................184.5.Definition of Pixel Defects................195.Block Diagram....................................215.1.Software Flow Chart.............215.2.Electrical Block Diagram...........23

  • 19" LCD Color Monitor Dell 1908FPC

    2

    Revision List

    Revision Release Date Revise history TPV model

    T97GGHHKFDDDPN

    T97GGHHBFDDDPC

    T97HGHHBFDDDPC

    T97HGHHKFDDDPC

    T97SGHHBFDDDPC

    A00 Apr.-10-2008 Initial Release

    T97SGHHKFDDDPC

    A01 May-06-2008 Add new models in Item14 T97GGHHKFDDDPC

    T97HGHHKFDDDPN A02 Jul-06-2008 Add new models in Item14

    T97HGHHBFDDDPN

  • 19" LCD Color Monitor Dell 1908FPC

    3

    ECN History

    ECN No. Change Description Service Deposition Cut-in date MSR

  • 19" LCD Color Monitor Dell 1908FPC

    4

    Important Safety Notice Proper service and repair is important to the safe, reliable operation of all AOC Company Equipment. The service

    procedures recommended by AOC and described in this service manual are effective methods of performing

    service operations. Some of these service operations require the use of tools specially designed for the purpose.

    The special tools should be used when and as recommended. It is important to note that this manual contains various CAUTIONS and NOTICES which should be carefully read in order to minimize the risk of personal injury to service personnel. The possibility exists that improper service methods may damage the equipment. It is also important to understand that these CAUTIONS and NOTICES ARE NOT EXHAUSTIVE. AOC could not possibly know, evaluate and advise the service trade of all conceivable ways in which service might be done or of the possible hazardous consequences of each way. Consequently, AOC has not undertaken any such broad evaluation. Accordingly, a servicer who uses a service procedure or tool which is not recommended by AOC must first satisfy himself thoroughly that neither his safety nor the safe operation of the equipment will be jeopardized by the service method selected. Hereafter throughout this manual, AOC Company will be referred to as AOC. WARNING Use of substitute replacement parts, which do not have the same, specified safety characteristics may create shock, fire, or other hazards. Under no circumstances should the original design be modified or altered without written permission from AOC. AOC assumes no liability, express or implied, arising out of any unauthorized modification of design. Servicer assumes all liability. FOR PRODUCTS CONTAINING LASER: DANGER-Invisible laser radiation when open. AVOID DIRECT EXPOSURE TO BEAM. CAUTION-Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. CAUTION -The use of optical instruments with this product will increase eye hazard. TO ENSURE THE CONTINUED RELIABILITY OF THIS PRODUCT, USE ONLY ORIGINAL MANUFACTURER'S REPLACEMENT PARTS, WHICH ARE LISTED WITH THEIR PART NUMBERS IN THE PARTS LIST SECTION OF THIS SERVICE MANUAL. Take care during handling the LCD module with backlight unit -Must mount the module using mounting holes arranged in four corners. -Do not press on the panel, edge of the frame strongly or electric shock as this will result in damage to the screen. -Do not scratch or press on the panel with any sharp objects, such as pencil or pen as this may result in damage to the panel. -Protect the module from the ESD as it may damage the electronic circuit (C-MOS). -Make certain that treatment persons body is grounded through wristband. -Do not leave the module in high temperature and in areas of high humidity for a long time. -Avoid contact with water as it may a short circuit within the module. -If the surface of panel becomes dirty, please wipe it off with a soft material. (Cleaning with a dirty or rough cloth may damage the panel.)

  • 19" LCD Color Monitor Dell 1908FPC

    5

    1. Monitor Specifications

    Screen type Active matrix - TFT LCD

    Panel Type LM190E08-TLB2 LPL

    Size 19 inches (19-inch viewable image size)

    Pixel pitch 0.294 mm

    Viewable angle 160 (vertical) typ, 160 (horizontal) typ

    LCD Panel

    Response time 5ms typical

    Video R, G, B Analog Interface, DVI digital Interface

    Separate Sync H/V TTL

    H-Frequency 30 kHz to 81 kHz (automatic) Input

    V-Frequency 56 Hz to 76 Hz (automatic)

    Display Colors 16.7M

    Dot Clock 165MHz (Max.)

    Max. Resolution 1280 x 1024 at 75 Hz

    Plug & Play VESA DDC

    ON Mode 35 W (typical) EPA ENERGY STAR

    OFF Mode

  • 19" LCD Color Monitor Dell 1908FPC

    6

    2. LCD Monitor Description The LCD monitor will contain a main board, power board, key board, which house the flat panel control logic,

    brightness control logic and DDC.

    The power board will provide AC to DC Inverter voltage to drive the backlight of panel and the main board chips

    each voltage.

    Video signal, DDC

    Power board

    Flat Panel and

    CCFL backlight

    Main Board

    Key board

    RS232 Connector

    For white balance

    adjustment in factory

    mode

    CCFL Drive.

    AC-IN

    100-240V

    Monitor Block Diagram

    Host Computer

  • 19" LCD Color Monitor Dell 1908FPC

    7

    3. Operation instructions 3.1 General Instructions

    NOTE: If you change the settings and then either proceed to another menu or exit the OSD menu, the monitor automatically saves those changes. The changes are also saved if you change the settings and then

    wait for the OSD menu to disappear.

    1. Push the MENU button to open the OSD menu and display the main menu.

    Main Menu for Analog (VGA) Input Main Menu for digital (DVI) Input

    Main Menu for Analog (VGA) Input Main Menu for Digital (DVI) Input

    or

    or

  • 19" LCD Color Monitor Dell 1908FPC

    8

    NOTE: Auto Adjust, Positioning and Image Settings are only available when you are using the analog (VGA)

    connector.

    2. Push the - and + buttons to move between the setting options. As you move from one icon to another, the option

    name is highlighted. See the table below for a complete list of all the options available for the monitor.

    3. Push the MENU button once to activate the highlighted option.

    4. Push - and + button to select the desired parameter.

    5. Push MENU to enter the slide bar and then use the - and + buttons, according to the indicators on the menu, to

    make your changes.

    6. Push the MENU button once to return to the main menu to select another option or push the MENU button two

    or three times to exit from the OSD menu.

    When the OSD is locked, pressing the menu button takes the user directly to the OSD settings menu, with OSD

    Lock selected. Select No (-) to unlock and allow user access to all applicable settings.

    3.2 Control Buttons

    1

    Video input select

    Use the Input Select button to select between two different video

    signals that may be connected to your monitor.

    If both VGA and DVI caables are connected to one PC, this monitor

    will display an image automatically just as long as a video signal is

    present in either VGA or DVI outputs. When connecting one display to

    two PCs, if using screen savers, best to set both to the exact times.

    Whichever mouse is moved first will activate that video input first.

    NOTE: The floating 'Dell Self-test Feature Check' dialog appears on a black background if the monitor cannot sense a video

    signal. Using the input select button, select the desired input to be

    tested either Analog Input or Digital Input. Disconnect the video cable

    from the video card and the Dell Self-test Feature Check dialogue box

    will appear if the display is operating correctly.

  • 19" LCD Color Monitor Dell 1908FPC

    9

    2

    OSD menu / select

    The Menu button is used to open and exit the on-screen display

    (OSD), and exit from menus and sub-menus. See Using the OSD

    Menu.

    3

    Brightness Menu

    Use this button to launch Brightness menu.

    3,4

    Down (-) and Up (+)

    Use these buttons to adjust (decrease/increase ranges) items in the

    OSD menu.

    4

    Auto Adjust

    Use this button to activate automatic setup and adjustment. The

    following dialog appears on a black screen as the monitor self-adjusts

    to the current input:

    Auto Adjust In Progress

    Auto Adjustment button allows the monitor to self-adjust to the incoming video signal. After using Auto Adjustment, you can further

    tune your monitor by using the Pixel Clock (Coarse), Phase (Fine)

    controls in the OSD.

    NOTE: Auto Adjust does not occur if you press the button while there are no active video input signals or attached cables.

    or

    or

  • 19" LCD Color Monitor Dell 1908FPC

    10

    5

    Power Button and Indicator

    Use the power button to turn the monitor on and off.

    The green light indicates the monitor is on and fully functional. An

    amber light indicates power save mode.

    3.3 Adjusting the Picture

    Icon Menu and

    Submenus Description

    Exit Select to exit the Main menu.

    Brightness/

    Contrast

    Brightness adjusts the luminance of the backlight.

    Adjust Brightness first, then adjust Contrast only if further adjustment is necessary.

    Push the + button to increase luminance and push the - button to decrease

    luminance (min 0 ~ max 100).

    Contrast adjusts the degree of difference between darkness and lightness on the

    monitor screen.

    Push the + button to increase the contrast and push the - button to decrease the

    contrast (min 0 ~ max 100).

    Positioning:

    Horizontal

    Vertical

    Positioning moves the viewing area around on the monitor screen.

    When making changes to either the Horizontal or Vertical settings, no changes

    occur to the size of the viewing area. The image shifts in response to your

    selection.

    Minimum is 0 (-) and maximum is 100 (+).

    NOTE: When using DVI source, the Positioning option is not available.

  • 19" LCD Color Monitor Dell 1908FPC

    11

    Auto Adjust Even though your computer recognizes your monitor on startup, the Auto

    Adjustment function optimizes the display settings for use with your particular

    setup.

    Select to activate automatic setup and adjustment. The following dialog appears

    on a black screen as the monitor self-adjusts to the current input:

    Auto Adjust In Progress

    Auto Adjustment allows the monitor to self-adjust to the incoming video signal.

    After using Auto Adjustment, you can further tune your monitor by using the Pixel

    Clock (Coarse) and Phase (Fine) controls under Image Settings.

    NOTE: In most cases, Auto Adjust produces the best image for your configuration.

    Image settings:

    Pixel Clock

    (Coarse)

    Phase (Fine)

    The Phase and Pixel Clock adjustments allow you to more closely adjust your

    monitor to your preference. These settings are accessed through the main OSD

    menu, by selecting Image Settings.

    Use the - and + buttons to make adjustments. (Minimum: 0 ~ Maximum: 100)

    If satisfactory results are not obtained using the Phase adjustment, use Pixel

    Clock (Coarse) and then use Phase (fine), again.

    NOTE: This function may change the width of the display image. Use the Horizontal function of the Position menu to center the display image on the

    screen.

    NOTE: When using DVI source, the Image Settings option is not available.

    Color Settings

    Color Settings adjusts the color temperature, color hue, and saturation.

    The color hue is most noticeable in areas of white.

  • 19" LCD Color Monitor Dell 1908FPC

    12

    Normal Preset

    Blue Preset

    Red Preset

    User Preset

    Normal Preset is selected to obtain the default (factory) color settings. This setting

    is also the sRGB standard default color space.

    Blue Preset is selected to obtain a bluish tint. This color setting is typically used for

    text based applications (spreadsheets, programming, text editors, etc.).

    Red Preset is selected to obtain a redder tint. This color setting is typically used

    for color-intensive applications (photograph image editing, multimedia, movies,

    etc.).

    User Preset: Use the plus and minus buttons to increase or decrease each of the

    three colors (R, G, B) independently, in single digit increments, from 0 to 100.

    OSD Settings:

    Horizontal

    Position

    Vertical Position

    OSD Hold Time

    OSD Lock

    Adjust the settings for the OSD, including the location, the amount of time the

    menu remains on-screen, and the rotation of the OSD.

    Position of the OSD:

    To adjust the horizontal position of the OSD, use the - and + buttons, and move

    OSD to the left and right.

    To adjust the vertical position of the OSD, use the - and + buttons, and move

    OSD down and up.

    OSD Hold Time:

    The OSD stays active for as long as it is in use. Adjusting the hold time, sets the

    length of time the OSD remains active after the last time you pressed a button.

    Use the - and + buttons to adjust the slider in 5 second increments, from 5 to 60

    seconds.

    OSD Lock:

    Controls user access to adjustments. When Yes (+) is selected, no user

    adjustments are allowed. All buttons are locked except the menu button.

    NOTE: When the OSD is locked, pressing the menu button takes the user directly to the OSD settings menu, with OSD Lock selected. Select No (-) to unlock

    and allow user access to all applicable settings.

  • 19" LCD Color Monitor Dell 1908FPC

    13

    NOTE: You can also lock or unlock the OSD by pushing and holding the Menu button for 15 seconds.

    Language Select to have the OSD display in one of five languages (English, French, Spanish, German, or Japanese).

    NOTE: The change only affects the OSD. It has no effect on any software

    running on the computer.

    Audio (optional) You can select to have the audio on or off when the monitor is in power saving

    mode.

    Yes enables audio

    No disables audio (default)

    Factory Reset: Reset the OSD menu options to the factory preset values.

    Exit Select to exit out of Reset to Factory Settings menu without resetting any

    OSD options.

    Position settings only Change the settings for Image Position back to original

    factory settings.

    Color settings only Change the Red, Green, and Blue settings back to their

    original factory settings and set the default setting for Normal Preset.

    All settings Change all the user-adjustable settings including color, position,

  • 19" LCD Color Monitor Dell 1908FPC

    14

    brightness, and contrast and OSD hold time to the factory defaults. The language

    of the OSD does not change.

    IR This feature will help reduce minor cases of image retention.

    Enable LCD Conditioning: If an image appears to be stuck on the monitor, select

    LCD Conditioning to help eliminate any image retention. Using the LCD

    Conditioning feature may take several hours. Severe cases of image retention are

    known as burn-in, the LCD Conditioning feature does not remove burn-in.

    NOTE: Use LCD Conditioning only when you experience a problem with image retention.

    Below warning message appears once user select Enable LCD Conditioning:

    NOTE: Press any button on the monitor to terminate LCD Conditioning at any time.

    DDC/CI Enable the DDC/CI control function.

    DDC/CI (Display Data Channel/Command Interface) allows you to adjust the

    monitor parameters (brightness, color balance, etc) via software applications on

    your PC.

    Default is "Enable". You can disable this feature by selecting "Disable".

    For best user experience and optimum performance of your monitor, keep this

    feature enabled.

    NOTE: If user select "Disable", display Warning message box as below. Select "Yes" disables DDC/CI and return to "Factory Reset" menu. Warning

    message time-out in 20 sec.

  • 19" LCD Color Monitor Dell 1908FPC

    15

    or

    or

    OSD Warning Messages One of the following warning messages may appear on the screen indicating that the monitor is out of

    synchronization.

    This means that the monitor cannot synchronize with the signal that it is receiving from the computer. Either the

    signal is too high or too low for the monitor to use. See specifications for the Horizontal and Vertical frequency

    ranges addressable by this monitor. Recommended mode is 1280 X 1024 @ 60Hz.

    NOTE: The floating Dell Self-test Feature Check dialog appears on-screen if the monitor cannot sense a video signal.

    Occasionally, no warning message appears, but the screen is blank. This could also indicate that the monitor is not

    synchronizing with the computer.

    1. Auto Detect (Digital Input)

    Cannot Display This Video Mode

    Optimum Resolution 1280 x1024 60Hz

    1. Auto Detect (Analog Input)

    Cannot Display This Video Mode

    Optimum Resolution 1280 x1024 60Hz

    or

    3. Digital Input

    Cannot Display This Video Mode

    Optimum Resolution 1280 x1024 60Hz

    2. Analog Input

    Cannot Display This Video Mode

    Optimum Resolution 1280 x1024 60Hz

    or

  • 19" LCD Color Monitor Dell 1908FPC

    16

    4. Input/Output Specification 4.1 Input Signal Connector VGA Connector:

    Pin No. Description Pin No. Description

    1. Red Video 9. DDC +5V

    2. Green Video 10. GND-sync

    3. Blue Video 11. GND

    4. GND 12. DDC data

    5. Self-test 13. H-Sync

    6. R-Ground 14. V-Sync

    7. G-Ground 15. DDC clock

    8. B-Ground

    VGA Connector layout

    DVI Connector:

    Note: Pin 1 is at the top right.

    Pin Signal Assignment Pin Signal Assignment Pin Signal Assignment

    1 T.M.D.S. Data 2- 9 T.M.D.S. Data 1- 17 T.M.D.S. Data 0-

    2 T.M.D.S. Data 2+ 10 T.M.D.S. Data 1+ 18 T.M.D.S. Data 0+

    3 T.M.D.S. Data 2 Shield 11 T.M.D.S. Data 1 Shield 19 T.M.D.S. Data 0 Shield

    4 No Pin 12 No Pin 20 No Pin

    5 No Pin 13 No Pin 21 No Pin

    6 DDC Clock 14 +5V Power 22 T.M.D.S. Clock Shield

    7 DDC Data 15 Ground (for +5V) 23 T.M.D.S. Clock +

    8 No Connect 16 Hot Plug Detect 24 T.M.D.S. Clock -

  • 19" LCD Color Monitor Dell 1908FPC

    17

    Universal Serial Bus (USB) Interface

    This monitor supports High-Speed Certified USB 2.0 interface.

    USB ports:

    1 upstream - rear 4 downstream - 2 on rear; 2 on left side

    4.2 Factory Preset Display Modes

    4.3 Power Supply Requirements

    A/C Line voltage range : 100 V ~ 240 V

    A/C Line frequency range : 50 3Hz, 60 3Hz Current : 1.5A max at 100V; 0.8A max at 240 V

    Peak surge current : < 60A peak at 240 VAC and cold starting

    Leakage current : < 3.5mA

    Power line surge : No advance effects (no loss of information or defect)

    with a maximum of 1 half-wave missing per second

    DC output Voltage : 5VDC 5; 13VDC 10,12VDC 5

    Data Rate Power Consumption

    High speed 480 Mbps 2.5W (Max., each port)

    Full speed 12 Mbps 2.5W (Max., each port)

    Low speed 1.5 Mbps 2.5W (Max., each port)

  • 19" LCD Color Monitor Dell 1908FPC

    18

    4.4 Panel Specification LM190E08-TLL2 4.4.1 Display Characteristics

    4.4.2 Optical Characteristics

    Ta= 25C, VLCD=5.0V, fV=60Hz, fCLK=54MHz, IBL=7.5mA

  • 19" LCD Color Monitor Dell 1908FPC

    19

    4.5 Definition of Pixel Defects 4.5. 1.Description

    These inspection standards shall be applied to LCD Module supplied by CHI MEI Optoelectronics Corporation.

    4.5.2 The environmental condition of inspection

    Ambient conditions

    a. Temperature : 255 b. Humidity : 65 10 % RH c. Illumination : Single 20W fluorescent lamp non-directive

    (300 to 700 Lux)

    Viewing distance

    The distance between the LCM and the inspectors eyes shall be at least 30-50. Viewing Angle

    The inspection shall be conducted within normal viewing angle range.

    Refer to the CAS for viewing angle.

    4.5.3. Dot Defect

    Bright Dot

    Dots(sub-pixels) which appeared brightly in the screen when the LCM displayed

    with Full Black pattern.

    - R,G or B 1 dot --------------------------------- 0 Max

    - Adjacent 2 dots -------------------------------- 0 Max

    - Total amount of Bright dots -------------------- 0 Max

    Partial Bright Dot

    - Partial bright dot (tiny dot) -------------------- 5 Max

    * Bright dot and Partial dot definition is referred to the Appendix B

    Dark Dot

    Dots(sub-pixels) which appeared darkly in the screen when the LCM displayed

    with bright pattern.

    - 1 dot -------------------------------------------- 5 Max

    - Adjacent 2 dots -------------------------------- 2 Max

    - Adjacent 3 dots -------------------------------- 1 Max

    - Total amount of Dark dot ---------------------- 5 Max

    - Minimum distance of Dark dots --------------- 5mm

    Total amount of Dot Defects -------------------- 5 Max

    (except Partial bright dot)

    4.5.4. Polarizer Defects

  • 19" LCD Color Monitor Dell 1908FPC

    20

    Note) continued

    c. Extraneous substances which can be wiped out, like Finger Print, Particles, are not considered as a defect.

    b. Defects which is on the Black Matrix(outside of Active Area) are not considered asa defect.

    4.5.5 Foreign Material

    * Maximum allowable number of defects for 3.2 & 3.3 : N

  • 19" LCD Color Monitor Dell 1908FPC

    21

    5. Block Diagram 5.1 Software Flow Chart

    1

    2

    N

    Y

    5

    Y

    N

    10

    Y

    N

    12

    Y

    N

    7

    Y

    N

    6

    4

    3

    8

    9

    14

    11

    13

    Y

    N

    15

    Y

    N16

    17

    19

    Y

    N 18

  • 19" LCD Color Monitor Dell 1908FPC

    22

    1) MCU Initializes.

    2) Is the EEprom blank?

    3) Program the EEprom by default values.

    4) Get the PWM value of brightness from EEprom.

    5) Is the power key pressed?

    6) Clear all global flags.

    7) Are the AUTO and SELECT keys pressed?

    8) Enter factory mode.

    9) Save the power key status into EEprom. Turn on the LED and set it to green color. Scalar initializes. 10) In standby mode?

    11) Update the lifetime of back light.

    12) Check the analog port, are there any signals coming?

    13) Does the scalar send out an interrupt request?

    14) Wake up the scalar.

    15) Are there any signals coming from analog port?

    16) Display "No connection Check Signal Cable" message. And go into standby mode after the message

    disappears. 17) Program the scalar to be able to show the coming mode.

    18) Process the OSD display.

    19) Read the keyboard. Is the power key pressed?

  • 19" LCD Color Monitor Dell 1908FPC

    23

    5.2 Electrical Block Diagram 5.2.1 Main Board

    SDA

    +VLCD

    Audio Control

    X

    DVI INPUT

    SCL

    Y

    USB Sw itch

    D_SUB INPUT

    X1

    LVDS

    DDC/CI

    M24C02

    Y1

    U20374HC4052D

    U402SST25LF020A SPI

    I2C

    X0

    WP

    HDCP_EN

    Analog R/G/B

    TMDS

    USB Board

    M24C02

    Key Board

    U403M24C16

    Y0

    I2C

    Control Line

    PanelResolution:1280X1024

    IC922KA278R12CTU

    U401GM5626H-LF-AA128 Pin

  • 19" LCD Color Monitor Dell 1908FPC

    24

    5.2.2 Inverter and Power Board

    EMI

    Bridge Rectifier and Filter

    Start Circuit R903, R904, R905

    PWM Control IC

    Over Voltage Protect

    AC input

    12V

    PWM Control IC

    Feedback Circuit

    Rectify and Output Circuit

    Transformer MOSFET

    Over Voltage Protect

    Lamp

    ON/OFF

    ON/OFF Control

    Rectifier diodes

    Feedback Circuit

    Transformer

    DIM

    5V

  • 19" LCD Color Monitor Dell 1908FPC

    25

    6. Mechanical Instructions Note: Firstly, put the monitor on a soft, flat and clean surface, wear gloves.

    Item Fig Remark

    Remove stand

    1. Rotate the stand to allow

    access to the stand

    release button.

    2. Press the Stand release

    button and lift up the

    Stand and away from the

    monitor.

    1. Remove the 4 screws

    Remove rear

    cover

    2. Pry the monitor up then

    find out the hooks

    position, use the tool (like

    the picture or other card)

    to insert into the gap of

    bezel and rear cover.

  • 19" LCD Color Monitor Dell 1908FPC

    26

    3. Turn over the monitor as

    the Fig, hold the rear cover

    , then slightly remove it.

    Remove bezel Take off the bezel

    Remove the

    shield 1. Remove the 4 screws

  • 19" LCD Color Monitor Dell 1908FPC

    27

    2. Remove the USB2 board

    cover

    3. Remove the 6 screws

    4. Disconnect the wire

    harness between USB1

    and USB2 .

  • 19" LCD Color Monitor Dell 1908FPC

    28

    5. Push the main shield as

    the arrowhead direction

    Disconnect the

    connector pin

    Disconnect the connector

    pin between key and main

    boards

    Remove USB

    and main board 1. Remove the 8 screws

  • 19" LCD Color Monitor Dell 1908FPC

    29

    2. Disconnect the connector

    wire

    3. Disconnect the wire

    harness between main

    board and panel

    4. Disconnect the wire

    holder

  • 19" LCD Color Monitor Dell 1908FPC

    30

    Remove the

    power board

    Remove the 5 screws

    Disconnect

    wire harness

    Disconnect the wire harness

    between power board and

    lamps

    Remove USB2

    board

    Remove the 2 screws and

    the USB2 Board.

  • 19" LCD Color Monitor Dell 1908FPC

    31

    Remove the

    main frame

    Remove the 4 screws (left

    and right)

    The end

  • 19" LCD Color Monitor Dell 1908FPC

    32

    7. Schematic Diagram 7.1 Main Board

    5

    02.Input Connectors

    Custom

    2 6Friday , January 11, 2008

    Title

    Size Document Number Rev

    Date: Sheet of

    Analog

    R250 100R 1/16WR212

    4

    K

    7

    1

    /

    1

    6

    W

    R208 10R 1/16W

    ZD209

    UDZS5.6B

    C2140.1uF/16V

    SDA_IN_VGA

    D207BAV99

    3

    12

    Pins 6/7/8 are R/G/Breturn lines resp.

    GND

    Q201PMBS3904

    GND

    R220 75R 1/16W

    C21822pF

    GND

    3

    ZD208

    UDZS5.6B

    SCL_IN_DVI

    R205 10R 1/16W

    GND

    HS_in

    SDA_IN_DVIR211

    1

    0

    K

    1

    /

    1

    6

    W

    R238 220R 1/16W

    R256 33R 1/16W

    ZD201UDZS5.6B

    C2220.1uF/16V

    ADD C228-C233 33P FOR EMIGND

    VS_IN

    R2274K7 1/16W

    R218 33K 1/16W

    R223 75R 1/16W

    GND

    R234

    75R 1/16W

    C213 0.047uF

    C21722pF

    R207 10R 1/16W

    R249 100R 1/16W

    ADD C228-C233 33P FOR EMI

    GND

    BLUE+ (3)

    ZD212

    UDZS5.6B

    D213BAV99

    3

    1 2

    SCL_IN_DVI

    R248 100R 1/16W

    R221

    10K 1/16W NC

    C23033pF

    C2270.1uF/16V

    Close to U401

    G2254-B-2-X-1-071205

    ZD203

    UDZS5.6B

    Q202PMBS3904

    C211 0.047uF

    DDC_SDA_VGA(3)

    R253

    4K7 1/16W

    A_DDC_5V

    GND

    A_DDC_5V

    A_DDC_5V

    SCL_IN_DVI

    VGA_5V

    +5V

    ZD207

    UDZS5.6B

    R233

    75R 1/16W

    TPVTop Victory Electronics CO.,Ltd.

    GND

    R230 100R 1/16W

    R217 22K 1/16W

    VS (3)

    SCL_IN_DVI

    D212BAV99

    3

    1 2

    GND

    +5V

    U202

    M24C02-WMN6TP

    1234 5

    678

    A0A1A2VSS SDA

    SCLWP

    VCC

    ZD210

    UDZS5.6B

    R203 10R 1/16W

    D208BAV99

    3

    12

    +5V

    DDC_SCL_VGA (3)

    D205BAV99

    3

    12

    GND

    RXC+ (3)

    C216 0.047uF

    ZD211

    UDZS5.6B

    SDA_IN_DVI

    CN201

    JACK

    1

    2

    3

    4

    5

    6

    7

    8

    17

    18

    19

    20

    21

    22

    23

    24

    9

    11

    13

    15

    10

    12

    14

    16

    2526

    1005/08/13 Change to HDCP

    GREEN+ (3)

    RXC- (3)

    VGA_PLUG

    RX0+IN

    Gin

    C215 0.047uF

    R239 220R 1/16W

    GND

    FB202

    60 OHM

    if input isanalog only,R254,255=0ohm

    GND

    A_DDC_5V

    2

    GND

    C212 change to10nF,support SOG Nov/02/06

    R24510K 1/16W

    R206 10R 1/16W

    C229

    33pF

    FB204

    430 OHM

    DDC_SDA_DVI (3)

    R232 100R 1/16W

    +5V

    C2090.1uF/16V

    R226

    4

    K

    7

    1

    /

    1

    6

    W

    Bin

    R224 100R 1/16W

    R213

    4

    K

    7

    1

    /

    1

    6

    W

    0522 ESD SOLUTION

    VGA_5V

    GND

    RED- (3)

    RX0- (3)

    R2364K7 1/16W

    DDC_SEL

    +5V

    GND

    C210 0.047uF

    SCL_IN_VGA

    DDC_SCL_DVI (3)

    R235

    75R 1/16W

    C23233pF

    GND

    SCL_IN_VGA

    C2450.1uF/16V R262

    10K 1/16WR261

    10K 1/16W

    D204BAV99

    3

    12

    C2190.1uF/16V

    GND

    RX2+IN

    Rin

    R2412K2 1/16W

    RX1- (3)

    VGA_PLUG

    C22833pF

    GND

    D211BAV99

    3

    1 2

    DVI_5V

    GND

    RX2+ (3)

    SDA_IN_DVI

    R255 NC

    GND

    RX1+ (3)

    FB201

    60 OHM

    U201

    M24C02-WMN6TP

    1234 5

    678A0

    A1A2VSS SDA

    SCLWP

    VCC

    GND

    R229 75R 1/16W

    (8 mil)

    GND

    R209 10R 1/16W

    75-ohm terminating resistorvery close to the VGAconn.

    CN202

    DB15

    815714613512411310291

    R222 100R 1/16W

    BLUE- (3)

    DVI_HPD

    RXC-IN

    D206BAV99

    3

    12

    C23333pF

    C2210.1uF/16V

    SDA_IN_DVI

    +5V

    RX1-IN

    DVI_5V

    RXC+IN

    R242

    1K 1/16W

    DVI_HPD

    SDA_IN_VGA

    D201BAV99

    3

    12

    R228 100R 1/16W

    R20110K 1/16W

    RX2-IN

    D202BAV99

    3

    12

    RX0+ (3)

    C212 10nF16V

    FB203 60 OHM

    GND

    RED+ (3)

    D210BAV70

    3

    1 2

    HDCP_EN(3)

    To HDCPblock

    GND

    GREEN- (3)

    ZD202UDZS5.6B

    +5V

    R2402K2 1/16W

    R202 10R 1/16W

    DVI_EDID_WP (3)

    RX0-INR214

    10K 1/16W

    GND

    CABLE_DET (3)

    R243 0R05 1/16W

    GND

    R204 10R 1/16W

    D209BAV70

    3

    1 2

    HS (3)

    U203

    74HC4052D

    12

    1

    14

    5

    15

    2

    11

    4

    10

    9

    7

    8

    6

    13

    3

    161Y0

    2Y0

    1Y1

    2Y1

    1Y2

    2Y2

    1Y3

    2Y3

    S0

    S1

    VEE

    GND

    /E

    1Z

    2Z

    VCC

    D203BAV99

    3

    12

    C2200.1uF/16V

    RX2- (3)

    R21533R 1/16W

    Q206PMBS3904

    R21633R 1/16W

    GND

    C2020.1uF/16V

    R2194K7 1/16W

    L201120

    1 2

    GND

    +3.3V_VDD

    R257 33R 1/16W

    (10 mil, )

    To DDC2Biblock

    R254 NC

    R2524K7 1/16W

    1

    GND

    C23133pF

    GND

    ZD204

    UDZS5.6B

    C201

    0.1uF/16V

    R251 100R 1/16W

  • 19" LCD Color Monitor Dell 1908FPC

    33

    RED-(2)

    LVDS_E2

    C311

    0.1uF/16V

    R333NC

    Standard SPI ROM

    3.3V_DVDD

    PBIAS (6)

    ROM_SCLK

    RXC-(2)

    LED_G (4)

    (Pin119)

    3.3V_PVDD

    LVDS_O2

    G2254-B-2-X-1-071205

    GND

    LVDS_E3

    Open

    GND+5V

    RX0-(2)

    08/13 ADD R336 ,R337 forgm 2621 ver.BC

    (R325)

    RX1-(2)

    R308

    4K7 1/16W

    R3234K7 1/16W

    C324

    0.1uF/16V

    Nam e

    C333

    0.1uF/16V

    U401

    GM5626H-LF-AA

    56

    49

    50

    3334

    36373839

    35

    29

    40

    62

    60

    27

    45

    41

    96

    42

    119

    100

    61

    12

    109

    8

    543

    24

    67

    9493

    52

    127

    125124123

    46

    4443

    51

    28

    323130

    13141516

    8

    5

    19202122

    11

    23

    99

    59

    97

    1

    0

    3

    1

    0

    4

    105

    1

    0

    6

    108

    109

    1

    1

    0

    111

    8990

    6564

    121120

    122

    126

    1

    2

    8

    57

    58

    63

    6667

    69

    7273757680818384

    1

    0

    7

    112113114115

    12

    6

    4

    8

    1

    7

    5

    5

    1

    1

    8

    8

    7

    9

    5

    9

    8

    1

    0

    2

    9

    1

    1

    1

    6

    5

    3

    1

    0

    1

    9

    2

    8

    2

    7

    4

    2 2

    5

    4

    7

    6

    8

    7

    1

    7

    7

    7

    9

    8

    6

    7

    8

    7

    0

    1

    8

    5

    4

    8

    8

    1

    1

    7

    GPO_1

    PBIAS

    PWM0 / GP0_4

    O_CLK_PO_CLK_N

    O_CH2_NO_CH1_PO_CH1_NO_CH0_P

    O_CH2_P

    O_R1N

    O_CH0_N

    SPI_DO

    SPI_CLK

    O_R0N

    O_B2N

    O_B0N

    GREEN+

    O_B0P

    PWM1 / GPO_5

    RED-

    SPI_DI

    E_CH2_N

    E_CLK_NE_CLK_P

    E_CH3_N

    E_R1NE_R0PE_R0N

    E_B2P

    E_R1PE_CH3_P

    BLUE-BLUE+

    CRVSS

    PPWR

    GPIO_13GPIO_12GPIO_11

    O_B2P

    O_B1PO_B1N

    GPO_0

    O_R0P

    O_CH3_NO_CH3_P

    O_R1P

    E_CH1_PE_CH1_NE_CH0_PE_CH0_N

    A

    V

    S

    S

    _

    D

    V

    I

    E_B0NE_B0PE_B1NE_B1P

    E_CH2_P

    E_B2N

    RED+

    SPI_CSn

    GREEN-

    A

    V

    S

    S

    _

    A

    D

    C

    A

    V

    D

    D

    _

    A

    D

    C

    _

    1

    8

    GPO_6

    V

    D

    D

    _

    R

    P

    L

    L

    _

    1

    8

    XTAL

    TCLK

    A

    V

    D

    D

    _

    R

    P

    L

    L

    _

    3

    3

    RESETn

    HSYNCVSYNC

    DDC_SDA_VGADDC_SCL_VGA

    GPIO_9GPIO_8

    GPIO_10

    GPIO_14

    A

    V

    D

    D

    _

    B

    I

    A

    S

    _

    3

    3

    GPO_2

    GPO_3

    RVDD_33

    HOST_SCLHOST_SDA

    REXT

    RX2+RX2-RX1+RX1-RX0+RX0-RXC+RXC-

    V

    S

    S

    _

    R

    P

    L

    L

    LBADC_VSSLBADC_IN3LBADC_IN2LBADC_IN1

    A

    V

    S

    S

    _

    B

    I

    A

    S

    V

    S

    S

    _

    O

    U

    T

    V

    S

    S

    _

    O

    U

    T

    C

    V

    D

    D

    _

    1

    8

    C

    V

    D

    D

    _

    1

    8

    C

    V

    D

    D

    _

    1

    8

    C

    V

    D

    D

    _

    1

    8

    A

    V

    S

    S

    _

    A

    D

    C

    A

    V

    S

    S

    _

    A

    D

    C

    A

    V

    S

    S

    _

    A

    D

    C

    R

    V

    D

    D

    _

    3

    3

    L

    B

    A

    D

    C

    _

    V

    D

    D

    _

    3

    3

    R

    V

    D

    D

    _

    3

    3

    A

    V

    D

    D

    _

    A

    D

    C

    _

    3

    3

    A

    V

    D

    D

    _

    A

    D

    C

    _

    3

    3

    A

    V

    D

    D

    _

    D

    V

    I

    _

    3

    3

    A

    V

    D

    D

    _

    D

    V

    I

    _

    3

    3

    V

    D

    D

    _

    O

    U

    T

    _

    3

    3

    V

    D

    D

    _

    O

    U

    T

    _

    3

    3

    V

    D

    D

    _

    O

    U

    T

    _

    3

    3

    A

    V

    S

    S

    _

    D

    V

    I

    A

    V

    S

    S

    _

    D

    V

    I

    A

    V

    S

    S

    _

    D

    V

    I

    A

    V

    S

    S

    _

    D

    V

    I

    A

    V

    D

    D

    _

    D

    V

    I

    _

    1

    8

    A

    V

    D

    D

    _

    D

    V

    I

    _

    1

    8

    A

    V

    D

    D

    _

    D

    V

    I

    _

    1

    8

    C

    R

    V

    S

    S

    C

    R

    V

    S

    S

    C

    R

    V

    S

    S

    C

    R

    V

    S

    S

    RESETn

    10 KOhm

    Open

    VS(2)

    LVDS_E6

    +C32522uF/50V

    +3.3V_VDD

    C307

    0.1uF/16V

    ATMEL_EN

    Move ROM_WP# function to GPIO12

    +3.3V_VDD

    GND

    LVDS_O1

    R337

    NC

    R311 100R 1/16W

    R307

    4K7 1/16W

    Default

    2

    (R324)

    LED_O (4)

    NVRAM_SCL

    R339100R 1/16W

    LVDS_O9

    Standard SPI ROM

    Open

    GND

    GREEN-(2)

    R310 100R 1/16W

    GND

    +C31922uF/50V

    UART_PIN_SEL

    R302249 1/16W

    3.3V_PVDD

    UART on GPO

    LVDS_O8

    R

    3

    0

    3

    N

    C

    1.8V_AVDD

    R3174

    K

    7

    1

    /

    1

    6

    W

    GND

    BLUE+(2)

    Gm2621 ver.BC Pin 41:high : ResetnLow : internalPOR(power on reset)

    (Pin59)

    PPWR (6)PPWR

    C306

    0.1uF/16V

    DDC_SCL_VGA(2)

    UDART_DO

    C302

    0.1uF/16V

    (PWM0,Pin50)

    UDART_DI

    LVDS_O3

    C304

    0.1uF/16V

    (PWM1)

    GREEN+(2)

    C308

    0.1uF/16V

    NVRAM_SCL

    R3291K 1/16W

    R306

    4K7 1/16W

    TPVTop Victory Electronics CO.,Ltd.

    GND

    C322

    0.1uF/16V

    +1.8V_VDD

    GND

    UDART_DO

    R30110R 1/16W

    7/26 By Sunny

    1.8V_DVDD

    3.3V_PVDD

    /WP

    (4)NVRAM_SDA

    LVDS_O5

    HDCP_EN (2)

    C331

    0.22uF

    X30114.31818MHz

    1

    2

    R

    3

    0

    4

    N

    C

    U402

    SST25LF020A-33-4C-SAE

    1234 5

    678

    CE#SOWP#VSS SI

    SCKHOLD#

    VDD

    C323

    0.1uF/16V

    +3.3V_VDD

    LBADC1 (4)

    +C30122uF/50V

    C305

    0.1uF/16V

    (R324)

    1.8V_AVDD

    08/13 ADDR334,R335

    GND

    C320

    0.1uF/16V

    RESETn

    C310

    0.1uF/16V

    R

    3

    0

    5

    4

    K

    7

    1

    /

    1

    6

    W

    Boot-Strap Configuration:

    3.3V_LAVDD

    RXC+(2)

    LVDS_E8

    C312

    0.1uF/16V

    3.3V_AVDD

    HS(2)

    R309 100R 1/16W

    +C30922uF/50V

    C326

    0.1uF/16V

    (R315)

    DVI_EDID_WP(2)

    LVDS_O0

    1.8V_DVDD

    C314

    0.1uF/16V

    C321

    0.1uF/16V

    C329

    NC

    V_EDID_ATMEL

    L303120

    1 2

    GND

    BRIGHTNESS(6)

    (Pin51)

    +5V

    RED+(2)

    LBADC2 (4)

    LVDS_E5

    (R303)

    DDC_SDA_DVI(2)

    3.3V_PVDD

    LVDS_O4

    R341

    1

    0

    K

    1

    /

    1

    6

    W

    R335 100R 1/16W

    ZD301

    UDZS5.6B

    3.3V_DVDD

    R

    3

    4

    3

    N

    C

    R312NC

    OPTIONALFORDEBUGGINGPURPOSESONLY

    LVDS_E4

    (R304)

    3.3V_DDC

    Audio cut-of f(4)

    Custom

    3.3V_DVDD

    R3184K7 1/16W

    R

    3

    2

    5

    N

    C

    R3164K7 1/16W

    G-PROBE

    ATMELSPI ROM

    Rem ove ROM_WP# function to GPIO12

    08/13 R332,R333 resersedfor ver.BC brown outdetect

    ROM_WP#

    LVDS_O6

    L305120

    1 2

    GND

    GND

    DDC_SEL

    UART on DDC

    LVDS_O[0..9]

    LVDS_E[0..9]

    R3310R05 1/16W

    (SPI_CSn)

    (R305)ROM_SDI

    3.3V_DVDD

    L301120

    1 2

    C32733pF

    Close to respective pow er Pins

    RX2-(2)RX2+(2)

    Audio Detect (4)

    Open

    L302120

    1 2

    R3244K7 1/16W

    1

    3

    GND

    3.3V_DDC

    GND

    GND

    CABLE_DET (2)

    (R323)

    LVDS_O[0..9] (5)

    R332NC

    R340 100R 1/16W

    C3300.1uF/16V

    Close to respective pow er Pins

    ATMELSPI ROM

    Ext. ROM JTAG Off

    BLUE-(2)

    RX1+(2)

    LVDS_O7

    DDC_SDA_VGA(2)

    R

    3

    1

    9

    4

    K

    7

    1

    /

    1

    6

    W

    5

    03.gm5626H Scaler

    3 6Friday , January 11, 2008

    Title

    Size Document Number Rev

    Date: Sheet of

    LVDS_E1

    R334 100R 1/16W

    /WP

    LVDS_E9

    C3320.1uF/16V

    U403

    M24C16

    1234 5

    678

    NCNCNCVSS SDA

    SCLWC

    VCC

    L304120

    1 2

    C318

    0.1uF/16V

    GND

    NVRAM_SDA

    R

    3

    1

    5

    4

    K

    7

    1

    /

    1

    6

    W

    GND

    GND

    3.3V_AVDD

    C313

    0.1uF/16V

    3.3V_AVDD

    3.3V_LAVDD

    1.8V_AVDD

    RX0+(2)

    LVDS_E7

    ROM_WP#

    UDART_DI

    PBIAS

    R338 NC

    C317

    0.1uF/16V

    U302

    G691L400T73F

    1

    2

    3GND

    RESET(RESET)

    VDD

    +C31622uF/50V

    LVDS_E0

    3.3V_DVDD

    3.3V_DVDD

    GND

    GND

    DDC_SEL

    C32847pF

    GND

    GND

    LVDS_E[0..9] (5)

    POWER_ON (4)

    GND

    CN301

    NC

    123

    C303

    0.1uF/16V

    R

    3

    4

    2

    N

    C

    R321NC

    GPO_0

    DDC_SCL_DVI(2)

    L306120

    1 2

    R336

    NC

    USB Switch(4)

  • 19" LCD Color Monitor Dell 1908FPC

    34

    +3.3V_VDD

    +5V

    LED_G(3)

    R413 220R 1/16W

    GND

    C403

    R420 22K 1/16W

    GND

    +3.3V_VDD

    C408

    0.1uF/16V

    LED_ORANGE

    R415 220R 1/16W

    LBADC2(3)

    Audio cut+

    KEY_LEFTKEY_MENU

    C4060.001uF

    POWER_ON(3)

    +3.3V_VDD

    LED_GREEN

    GND

    MUTE

    KEY_RIGHT

    R416

    10K 1/16W

    R407

    100R 1/16W

    GND

    GND

    +3.3V_VDD

    C4070.001uF

    R411 220R 1/16W

    Audio Detect(3)

    LED_G

    R405

    NC

    G2254-B-2-X-1-071205

    R402NC

    5

    04.KEYPADCustom

    4 6Friday , January 11, 2008

    Title

    Size Document Number Rev

    Date: Sheet of

    C409NC

    KEY_ONOFF

    R417

    10K 1/16W

    C4010.1uF/16V

    Audio cut-of f (3)

    C402NC

    Q403PMBS3904

    R406NC

    GND

    R403 NC

    C4050

    .

    0

    0

    1

    u

    F

    LED_O

    GND

    LED_O (3)

    R424 4K7 1/16W

    CN403

    CONN

    2468

    1357

    KEY_LEFT

    C410NCCN401

    CONN

    12345

    R422 30K 1/16W

    GND

    Audio-Det+

    +5V

    GND

    KEY_RIGHT

    R409 4K7 1/16W

    R421 22K 1/16W

    USB Switch(3)

    Q404PMBS3904

    KEY_MENU

    R423 470R 1/16W

    R419 30K 1/16W

    Q401NC

    C4040.001uF

    GND

    L401120

    1 2

    R414 220R 1/16W

    R401

    NC R404 0R05 1/16WR426 NC

    R41810K 1/16W

    D401

    NC

    3

    1

    2

    LBADC1(3)

    KEY_AUTO

    GND

    R410 4K7 1/16W

    +5V

    GND

    R412 220R 1/16W

    Q402NC

    KEY_AUTO

    R425 NC

    R427

    NC

    R408

    100R 1/16W

    R431

    10K 1/16W

    KEY_ONOFF

    TPVTop Victory Electronics CO.,Ltd.

  • 19" LCD Color Monitor Dell 1908FPC

    35

    LVDS_E7

    LVDS_O1

    RXEC-

    LVDS_O6

    LVDS_E2

    RXEC+

    CN501

    CONN

    24681012141618202224

    13579

    11131517192123

    LVDS_E8

    RXOC+

    1

    5

    .

    4

    m

    A

    LVDS_O5

    LVDS_E9

    RXE2+

    LVDS_O5

    GND

    LVDS_E1

    + C50122uF/50V

    TPVTop Victory Electronics CO.,Ltd.

    RXO1+

    LVDS_O[0..9](3)

    LVDS_E3

    LVDS_O4

    RXE1-

    LVDS_O0

    LVDS_E6

    C503NC

    RXO2-

    RXE2-

    LVDS_E8

    LVDS_O2

    C5020.1uF/16V

    LVDS_O7

    GND

    RXO3+RXE0+

    LVDS_E9

    LVDS_O3

    LVDS_O9RXE0-

    LVDS_O4

    LVDS_E0

    LVDS_E4

    G2254-B-2-X-1-071205

    LVDS_O6RXO2+

    +VLCD

    LVDS_E[0..9](3)RXE3- RXE3+

    RXO0+

    LVDS_E5

    LVDS_E1

    LVDS_E0

    LVDS_O1RXO0-

    LVDS_E7

    LVDS_E3LVDS_E2

    LVDS_O7 RXO3-

    LVDS_O0

    GND

    RXOC-

    RXE1+LVDS_O8

    LVDS_O8

    LVDS_E5

    R50175 1/8W

    5

    05.PANEL INTERFACEA

    5 6Friday , January 11, 2008

    Title

    Size Document Number Rev

    Date: Sheet of

    RXO1- LVDS_O3

    LVDS_O9

    LVDS_E6

    LVDS_O2

    LVDS_E4

  • 19" LCD Color Monitor Dell 1908FPC

    36

    R604

    1K 1/16W

    VCC5VVCC5V

    GND

    + C602

    220uF/25V

    CN601

    CONN

    2468

    1012

    1357911

    GND

    GND GND

    C613

    0.1uF/16V

    GND

    C614

    1uF/16V

    +VLCD

    R6140R05 1/16W

    +5VVCC12VGND

    +C610

    22uF/50V

    1.435A

    BRIGHTNESS(3)

    PPWR(3) C617

    0.022uF

    +3.3V_VDD

    GND

    C6180.1uF/16V

    C603

    0.1uF/16V

    ON_OFF

    R610NC

    +C601220uF/25V

    +C606

    NC

    U601

    AIC1084-33PM

    3

    1

    2VIN

    ADJ

    VOUT

    D602

    FA20-04

    +5V

    R6021K 1/16W

    C608

    0.1uF/16V

    Add C616

    GND

    GND +C605

    NCR612NC

    R609

    47K 1/16W

    GND

    + C611220uF/25V

    +12V

    GND

    R613NC

    R603

    1K 1/16WGND

    GND

    + C61522uF/50V

    +12V

    Q603PMBS3904

    U602AZ1117D-1.8-E1

    123

    A

    D

    J

    /

    G

    N

    D

    O

    U

    T

    P

    U

    T

    I

    N

    P

    U

    T

    Audio cut+

    A

    Audio-Det+

    R606

    0

    R

    0

    5

    1

    /

    1

    6

    W

    +5V

    R607NC

    +12V

    +C609

    NC

    +5V

    R6150R05 1/16W

    GND

    C607NC

    +5V

    GND GND

    GND

    GND

    Q601PMBS3904

    D601

    FA20-04

    TPVTop Victory Electronics CO.,Ltd.

    GND

    GND

    R611NC

    C604

    0.1uF/16V

    DIMMING

    R605

    4K7 1/16W

    R608100K 1/16W

    204m A

    G2254-B-2-X-1-071205 5

    06.POWER

    6 6Friday , January 11, 2008

    Title

    Size Document Number Rev

    Date: Sheet of

    +3.3V_VDD

    VCC12V

    C612

    0.1uF/16V

    Q602

    AM2321P

    3

    1

    2

    142m A

    GND

    GND

    PBIAS (3)

    C616

    NC

    GND

    +1.8V_VDD

    +5V

    R601 4K7 1/16W

    L601120 OHM NC

  • 19" LCD Color Monitor Dell 1908FPC

    37

    7.2 Power Board

    ZD921RLZ13B

    1

    2

    R936100 OHM 1/4W+ C925

    470uF25V

    IC921

    KIA431A-AT/P

    ON/OFF

    R9292.4K OHM 1% 1/8W

    IC901

    LD7552BPS

    1234 5

    678

    GNDCOMPVCCRT NC

    CSVCCOUT

    R902

    330K 1/4W

    D921DIODE FME-220A

    1

    2

    3

    R912

    10 OHM 1/4WQ900STP10NK70ZFP

    +5V

    IC902PC123X2YFZOF

    1

    2

    4

    3

    C9370.1uF/50V

    PWPC7942LAA1 H

    DELL 1908FPC Custom

    2 3Tuesday , April 08, 2008

    715G2778-101.POWER

    G2778-1-X-X-1-080304

    OEM MODEL Size

    Rev

    Date Sheet of

    TPV MODEL

    PCB NAME

    T P V ( Top Victory Electronics Co . , Ltd. )

    Key Component

    R9131K OHM 1/8W

    R910

    2R2 1/4W

    CN901

    SOCKET

    12

    3

    R905430K OHM 1/4W C905

    0.1uF/50V

    Q903PMBS3904

    DIM

    IC903

    NC

    C933

    3300PF250V

    C904

    1500pF/1KV

    ZD902RLZ13B

    ZD922RLZ5.1B

    1

    2

    R9441K 1/4W

    IC922

    KA278R12CTU

    1 234

    Vin VoGNDVdis

    R920NC

    R922220 OHM 1/4W

    + C923

    1000uF/25V

    + C9191000uF/25V

    F901FUSE

    L921

    Coil

    R909100KOMH 2W

    R940 100 OHM 1/4W

    D901FR103

    +5V

    R903430K OHM 1/4W

    + C903150uF M 450V

    D922IN4148W

    R9411K 1/4W

    F903

    NC

    R9451K 1/4W

    -+ BD901

    D3SB80

    2

    1

    3

    4

    R914

    NC

    + C90622uF/50V

    + C935470uF25V

    R9251K 1/8W

    R9160.3OHM2W

    L902

    LINE FILTER

    1

    4

    2

    3

    D9231N4148W

    + C926

    470uF25V

    HS2

    HEAT SINK(D921)

    12

    R919NC

    CN903

    JACK

    3

    21

    C902

    0.0022UF/400V

    R9301K OHM 1/4W

    + C9241000uF/25V

    HS1

    HEAT SINK(Q900)

    12

    +13V

    C929NC

    R911100K OHM 1% 1/8W

    L922

    Coil

    R939 100 OHM 1/4W

    CN902

    CONN

    123456789101112

    C901

    0.0022UF/400V

    C9360.1uF/50V

    Q921SST2222A

    +13V

    HS3

    HEAT SINK(D920)

    12

    R938 100 OHM 1/4W

    Q922DTC144WKA

    R901

    330K 1/4W

    D900PR1007R

    R9283.9KOHM +-1% 1/8W

    C9270.1uF/50V

    C9380.1uF/50V

    R9461K 1/4W

    R91510K 1/8W

    C9340.022uF/25V

    T901POWER X'FMR1

    8

    11,12

    2

    3

    5

    6

    7

    9,10

    R908

    510K OHM 1/4W

    C908NC

    D920FME-220B

    1

    2

    3

    R900

    330K 1/4W

    LB901

    BEAD

    R92633K 1/8W

    R907510K OHM 1/4W

    R906

    510K OHM 1/4W

    R935100 OHM 1/4W

    R917NC

    C932

    0.0047UF/400V

    C921

    0.001uF

    R931

    4.7K OHM 1/4W

    C9300.1uF/50V R927

    1K 1/8W

    R923NC

    C9310.1uF

    + C922

    1000uF/25V

    C900

    0.047UF

    tNR901NTCR

    C928

    0.001uF

    C920

    0.001uF

    R937100 OHM 1/4W

    L901

    4.0mH

    1

    2

    4

    3

    R904430K OHM 1/4W

    R918NC

    F902

    0 OHM 1/4W

    R9243K6 1/8W

    R9431KOHM +-5% 1/8W

    C907220pF25V

  • 19" LCD Color Monitor Dell 1908FPC

    38

    R81051K OHM 1% 1/8W

    C8452.2uF/16V

    D811NC

    C835NC

    C8411000pF

    Q810RK7002

    12V 22WR8091K 1/10W 1%

    C817NC

    Q806PMBS3904

    PWPC7942LAA1 H

    DELL 1908FPC Custom

    3 3Tuesday , April 08, 2008

    715G2778-102.INVERTER

    G2778-1-X-X-1-080304

    OEM MODEL Size

    Rev

    Date Sheet of

    TPV MODEL

    PCB NAME

    T P V ( Top Victory Electronics Co . , Ltd. )

    Key Component

    R839

    10R 1/8W 5%

    D8091N4148W

    C81110pF/6KV

    R8351M 1/10W 5%

    D804BAV99

    3

    1

    2

    R8221K 1/10W 1%

    C846NC

    CN802

    CONN

    12

    R83210K 1/8W

    R8112.4K OHM 1% 1/10W

    D801BAV99

    3

    1

    2

    +C803

    470UF/25V

    Q808PDTA144WK

    R802NC

    R8621M 1/10W 5%

    R8141K5 1/8W

    R85515R 1/4W 5%

    R82047K 1/10W

    DIM

    CN804

    CONN

    12

    R861220KOHM +-1% 1/10W

    D813NC

    C8070.1uF/25V

    R8193.6K OHM 1% 1/10W

    R85615R 1/4W 5%

    F801

    0 OHM 1/4W

    C840

    1000pF

    T801POWER X'FMR1

    4

    8

    3

    7 96

    2

    5

    D8061N4148W

    R8151K5 1/8W

    D812NC

    D802BAV99

    3

    1

    2

    Q812PMBS3906

    1

    2

    3

    R8261K 1/10W 1%

    C838

    1000pF

    R80668K OHM 1% 1/10W

    D810NC

    R80747K 1/10W

    R85815R 1/4W 5%

    R828

    10K 1/8WON/OFF

    Q805PDTC144WK

    R8121K 1/10W 1%

    R8241K 1/10W 1%

    R834

    10K 1/8W

    R83747K 1/8W

    C8221uF/25V

    +13V

    R8312.4K OHM 1% 1/10W

    Q809RK7002

    D805BAW56

    3

    1

    2

    C

    B

    E

    C8340.1uF/25V

    C820220pF

    R833

    10K 1/8W

    R850

    10R 1/8W 5%

    C8240.1uF

    IC801

    TL494IDR

    12345678 9

    101112131415161IN+

    1IN-FEEDBACKDTCCTRTGNDC1 E1

    E2C2

    VCCOUTPUT CTRL

    REF2IN-2IN+

    C8210.1uF/25V

    C8391000pF

    R817

    10K 1/8W

    R804100R 1/8W

    Q804PMBS3906

    1

    2

    3

    CN801

    CONN

    12

    R8161K5 1/8W

    Q811PMBS3904

    C8420.01uF

    R80810K 1/8W

    C8050.1uF

    C8160.0022uF

    Q807PMBS3904

    C8250.1uF/25V

    Q803AM9945N-T1-PF

    1

    2

    3

    4

    8

    7

    6

    5

    S

    G

    S

    G

    D

    D

    D

    D

    R85715R 1/4W 5%

    C8230.0022uF

    C8150.0022uF

    + C802470UF/25V

    R805NC

    D8171N4148W

    T802POWER X'FMR1

    4

    8

    3

    7 96

    2

    5

    D803BAV99

    3

    1

    2

    R825

    39 OHM 1/8W

    R8233.6K OHM 1% 1/10W

    R8011K5 1/8W

    R8181K 1/10W 1%

    R841

    68K OHM 1% 1/10W

    D808BAW56

    3

    1

    2C

    B

    E

    R81310K 1/8W

    R8270R05 1/10W 5%

    R8031M 1/10W 5%

    Q801PMBS3904

    Q802AM9945N-T1-PF

    1

    2

    3

    4

    8

    7

    6

    5

    S

    G

    S

    G

    D

    D

    D

    D

    R8518K2 1/10W

    CN803

    CONN

    12

    C8190.0022uF

    R829

    39 OHM 1/8W

    R853

    68K OHM 1% 1/10W

    D8141N4148W

    R854

    68K OHM 1% 1/10W

    C80110pF/6KV

    R8211K 1/10W 1%

  • 19" LCD Color Monitor Dell 1908FPC

    39

    7.3 USB Board

    C7204.7uF/6.3V

    CN701

    CONN

    12345

    DP3

    L702

    90 ohm

    1

    4

    2

    3

    VBUS3

    VBUS1A

    R738NC

    power port

    DM0

    R703

    1

    0

    0

    K

    1

    /

    1

    0

    W

    R705390 1/10W

    R740

    0

    1

    /

    1

    0

    W

    DM1

    VBUS3

    VBUS4

    DM4

    DM2

    FB708

    120 OHM

    1

    2

    R71115K 1/10W

    R70410K 1/10W

    DP0

    R733NC

    C712 close to1.8V

    U701

    DP0

    L703

    90 ohm

    1

    4

    2

    3

    R701100K 1/10W

    5

    01.USB Board

    6 6Thursday , December 06, 2007

    Title

    Size Document Number Rev

    Date: Sheet of

    DM4

    Z

    D

    7

    0

    6

    E

    G

    A

    1

    0

    6

    0

    3

    V

    0

    5

    A

    1

    -

    B

    1

    2

    CN702

    CONN

    246810

    13579

    R736NC

    R708

    1

    M

    1

    /

    1

    0

    W

    R734NC

    DP0

    R71315K 1/10W

    L705

    90 ohm

    1

    4

    2

    3

    Z

    D

    7

    0

    2

    E

    G

    A

    1

    0

    6

    0

    3

    V

    0

    5

    A

    1

    -

    B

    1

    2

    C7310.01uF

    DM3

    DM3 VBUS3A

    C7210.1uF 16V

    VBUS1

    + C742NC

    Z

    D

    7

    0

    3

    E

    G

    A

    1

    0

    6

    0

    3

    V

    0

    5

    A

    1

    -

    B

    1

    2

    8/18

    R70610K 1/10W

    SDA

    + C706100uF/25V

    + C705100uF/25V

    TPVTop Victory Electronics CO.,Ltd.

    FB706

    600 OHM1 2

    R745

    470 1/10W

    U703

    3 2

    1

    VI VO

    G

    N

    D

    USB5V

    DP4

    R749220 1/10W

    C704 22pF50V

    VCC3.3V

    VBUS4

    VBUS4A

    C702

    0

    .

    1

    u

    F

    1

    6

    V

    tF702

    PTCR

    1

    2

    C7130.01uF

    123

    4

    CN703

    CONNNECTOR

    1234

    6

    5

    G1666-B-3-X-1-071203

    1 2 3 4

    5 6 7 8

    CN704CONNNECTOR

    1 2 3 4

    65 7 8

    11

    12

    9

    10

    R71210K 1/10W

    C7110.01uF

    VCC3.3V

    DM0

    USB5V

    C7270.1uF 16V

    DP2

    Upstream

    Dow nstream 1

    Dow nstream 2

    Dow nstream 3

    Dow nstream 4

    EEPROM

    Common

    U701USB2504

    2

    3

    6

    8

    12

    14

    5

    9

    11

    15

    52

    45

    43

    39

    37

    27

    25

    22

    20

    26

    24

    21

    19

    46

    44

    40

    38

    63

    3435

    3650

    58

    57

    49

    51

    31

    32

    42

    48

    7

    64

    59

    60

    41

    47

    5355

    56

    23

    29

    62

    16104

    13

    1

    54

    61

    28

    30

    33

    1718

    USBDP0

    USBDN0

    USBDP1

    USBDP2

    USBDP3

    USBDP4

    USBDN1

    USBDN2

    USBDN3

    USBDN4

    VBUS_DET

    PRTPWR1

    PRTPWR2

    PRTPWR3

    PRTPWR4

    GR1/NON_REM0

    GR2/NON_REM1

    GR3/PRT_DIS0

    GR4/PRT_DIS1

    AM1/GANG_EN

    AM2/MTT_DIS

    AM3

    AM4/LED_EN

    OCS1_N

    OCS2_N

    OCS3_N

    OCS4_N

    RBIAS

    SDA/SMBDATASCL/SMBCLK

    CFG_SEL0CFG_SEL1

    XTAL1/CLKIN

    XTAL2

    RESET_N

    SELF_PWR

    TEST0

    NC3

    VDD18

    TEST1

    VDDA

    VSS

    CFG_SEL2

    VDDA18PLL

    VSS

    CLKIN_EN

    VSSVSS

    NC5

    PRTPWR_POL

    VSS

    ATEST/REG_EN

    VSSVSSVSS

    VDDA

    VDDA

    VDD18

    VDDA33PLL

    VDD33

    VDD18

    NC4

    NC1NC2

    + C73447uF/25V

    /OC1

    VBUS2

    DP3

    C7100.01uF

    R75510K 1/10W

    8/18

    tF704

    PTCR

    1

    2

    VCC3.3V

    /OC4

    C7090.01uF

    R731NC

    USB5V

    R747220 1/10W

    VBUS2

    VBUS0

    FB701

    120 OHM1 2

    FB703

    120 OHM1 2

    USB5V

    R746220 1/10W

    DM1 FB702

    120 OHM1 2

    VBUS0 USB5V

    Z

    D

    7

    0

    8

    E

    G

    A

    1

    0

    6

    0

    3

    V

    0

    5

    A

    1

    -

    B

    1

    2

    L704

    90 ohm

    1

    4

    2

    3

    U701

    VCC3.3V

    + C708100uF/25V

    8/30

    VCC3.3V

    C7440.1uF 16V

    L706

    90 ohm

    1

    4

    2

    3

    FB705

    600 OHM

    1 2

    8/31

    VCC3.3V

    SCL

    R70710K 1/10W

    R732 NC

    Z

    D

    7

    0

    1

    E

    G

    A

    1

    0

    6

    0

    3

    V

    0

    5

    A

    1

    -

    B

    1

    2

    VCC3.3V

    DM2

    R71010K 1/10W

    Z

    D

    7

    1

    0

    E

    G

    A

    1

    0

    6

    0

    3

    V

    0

    5

    A

    1

    -

    B

    1

    2

    USB5V

    DP2

    C7230.1uF 16V

    + C72810uF/50V

    /OC2

    DP1

    C7010.1uF 16V

    /OC3

    FB704

    120 OHM1 2

    R702100K 1/10W

    R71715K 1/10W

    R71515K 1/10W

    8/18

    C741NC

    tF703

    PTCR

    1

    2

    C7150.1uF 16V

    C7160.01uF

    R741

    0

    1

    /

    1

    0

    W

    R742

    N

    C R71610K 1/10W

    Z

    D

    7

    0

    4

    E

    G

    A

    1

    0

    6

    0

    3

    V

    0

    5

    A

    1

    -

    B

    1

    2

    + C707100uF/25V

    C7240.1uF 16V

    DM2

    C7144.7uF/6.3V

    R70911K 1/10W

    DP4

    DP4

    USB5V

    DM3

    R737NC

    /OC3

    DM4

    R709 close topin 63

    X70124.000MHZ

    1

    2

    DM0

    To connect upstream port VCC

    VBUS2A

    Z

    D

    7

    0

    5

    E

    G

    A

    1

    0

    6

    0

    3

    V

    0

    5

    A

    1

    -

    B

    1

    2

    C7180.01uF

    ZD707

    E

    G

    A

    1

    0

    6

    0

    3

    V

    0

    5

    A

    1

    -

    B

    1

    2

    R71410K 1/10W

    Z

    D

    7

    0

    9

    E

    G

    A

    1

    0

    6

    0

    3

    V

    0

    5

    A

    1

    -

    B

    1

    2

    DP3

    /OC1

    /OC4

    C7190.1uF 16V

    DP1

    C7124.7uF/6.3V

    R739 NC

    C7220.1uF 16V

    R718

    NC

    USB5V

    C7170.01uF

    /OC2

    VBUS1

    R735NC

    tF701

    PTCR

    1

    2

    DP2

    C703 22pF50V

    R730NC

    C714closeto1.8V

    8/18

    C7430.1uF 16V

  • 19" LCD Color Monitor Dell 1908FPC

    40

    7.4 Key Board

    B

    Key BoardA

    1 1Wednesday , Nov ember 14, 2007

    Title

    Size Document Number Rev

    Date: Sheet of

    KEY AUTOG

    LED01

    LED

    3 4

    1 2

    ZD01UDZS5.6B

    1

    2

    SW1

    SW

    1 3 5

    2 4 6 8

    7 9

    10C01

    0.1uF/16V

    GND

    CN1

    CONN

    12345678

    ON/OFF

    CONTROL KEY PAD (Switch) B

    KEY PAD (For IBM L70)

    AOC (Top Victory) Electronics Co., Ltd.

    A

    1 1Wednesday , Nov ember 14, 2007

    Title

    Size Document Number Rev

    Date: Sheet of

    GND

    ZD02UDZS5.6B

    1

    2

    UP

    A

    715G2249-A-2

    MENU

    C020.1uF/16V

    DOWN

  • 19" LCD Color Monitor Dell 1908FPC

    41

    8. PCB Layout 8.1 Main Board

  • 19" LCD Color Monitor Dell 1908FPC

    42

  • 19" LCD Color Monitor Dell 1908FPC

    43

    8.2 Power Board

  • 19" LCD Color Monitor Dell 1908FPC

    44

    8.3 Key Board

  • 19" LCD Color Monitor Dell 1908FPC

    45

    8.4 USB Board

  • 19" LCD Color Monitor Dell 1908FPC

    46

    9. Maintainability 9.1 Equipments and Tools Requirement

    1. Voltage meter

    2. Oscilloscope

    3. Pattern Generator

    4. LCD Color Analyzer

    5. Service Manual

    6. User Manual

  • 19" LCD Color Monitor Dell 1908FPC

    47

    9.2 Trouble shooting 9.2.1 Main Board

    No power

    No power

    Press power key and look

    if the picture is normal

    Please reinsert and make sure

    the AC of 100-240 is normal

    Measure U602 PIN2=1.8V

    U601 PIN2=3.3V

    Reinsert or check the Adapter/Inverter section

    X301 oscillate waveforms

    are normal

    Check CN601 or replace U601, U602

    Replace U401

    Replace X301

    OK

    OK

    OK

    NG

    OK

    NG

    NG

  • 19" LCD Color Monitor Dell 1908FPC

    48

    No picture (LED orange)

    No picture

    Measure U602 PIN2=1.8V

    U601 PIN2=3.3V

    Replace U401

    X301 oscillate

    waveform is normal

    Replace U601, U602

    OK

    OK

    OK

    NG

    Check HS/VS from

    CN202 is normal

    Replace X301

    Check Correspondent component

    NG

    NG

    Replace U401

    Whether the reset

    of the Scalar IC is

    useful?

    Check U302, C333,

    C329, ZD301 NG

    OK

  • 19" LCD Color Monitor Dell 1908FPC

    49

    White screen

    White screen

    Measure Q603 base

    is high level?

    X301 oscillate waveform is normal

    Check Q603, Q602 is

    broken or CN501 solder?

    Check Correspondent component.

    Replace PANEL

    Check Correspondent component.

    Replace U401

    OK

    OK

    OK Replace X301

    OK

    NG

    NG

    NG

    NG

    Check reset circuit of

    U401 is normal

  • 19" LCD Color Monitor Dell 1908FPC

    50

    9.2.2 Power/Inverter Board

    No power

    Check bridge rectified circuit and F901 circut

    1) Check IC901

    2) Check IC902,R925, R930OVP circuit

    Check CN902 pin78 = 5V

    Check the voltage of C903(+)

    Check start voltage for the pin3 of IC901

    Check R903,R904,R905 and Change IC901

    NG

    Check the auxiliary voltage is bigger than

    10V and smaller than 20V

    NG

    NG

    NG

    Check Q900, R912, T901, D920,ZD902,Q903

    D921,IC921, F902

    Check IC901 pin8 PWM wave

    Check IC901 NG

    OK

    NG

    OK

    OK

    OK

    OK

    Check AC line volt 110V or 220V

    Check AC input

  • 19" LCD Color Monitor Dell 1908FPC

    51

    No Backlight

    Check R804=12V

    NG OK Check adapter and F902

    Check ON/OFF signal

    Check Interface board or main board NG OK

    Check IC801 PIN12=5V

    NG OK

    Change on/off circuit

    Check IC801 PIN5 have triangle wave

    NG OK Change IC801

    Check IC801 PIN9/PIN11PWM wave

    NGOK

    Check Q802/Q803

    Check the output of T801, T802

    Check connecter & lamp

    OK NGChange T801, T802

  • 19" LCD Color Monitor Dell 1908FPC

    52

    9.2.3 Keypad Board

    OSD is unstable or not working

    Is Key Pad Board connecting normally? Connect Key Pad Board

    Is Button Switch normally? Replace Button Switch

    Y

    N

    N

    Is Key Pad Board normally? Replace Key Pad Board

    Y

    N

    Y

    Check Main Board

  • 19" LCD Color Monitor Dell 1908FPC

    53

    10. White balance, Luminance adjustment Approximately 2 Hours should be allowed for warm up before proceeding White-Balance adjustment.

    Before started adjust white balance, please setting the Minolta-CA210 MEM. Channel 0 to 65000K colors, MEM.

    Channel 0 to 93000K colors, MEM. Channel 0 to 57000K (our 9300 parameter is x=28320, y=29720, Y = 210

    20 cd/m2 6500 parameter is x =31320, y=32920, Y = 230 20 cd/m2, and 5700 parameter is x = 326 20, y = 349 20, Y = 230 20 cd/m2)

    How to setting MEM.channel you can reference to Minolta-CA210 user guide or simple use SC key and NEXT

    key to modify x, y, Y value and use ID key to modify the TEXT description Following is the procedure to do

    white-balance adjust

    Enter into the factory mode:

    Press MENU and + button during press Power button will activate the factory mode,

    Gain adjustment:

    Move cursor to -Factory Setting- and press MENU key to enter this sub-menu.

    Move cursor to Factory and press MENU key.

    Move cursor to Auto Level and press MENU key to adjust Gain and Offset automatically;

    a. Adjust sRGB (65000K) color-temperature

    1. Switch the Minolta-CA210 to RGB-mode (with press MODE button)

    2. Switch the MEM.channel to Channel 0 (with up or down arrow on Minolta-CA210)

    3.The LCD-indicator on Minolta-CA210 will show x = 313 20, y = 329 20, Y = 230 20 cd/m2

    b. Adjust Color1 (93000K) color-temperature

    4. Switch the Minolta-CA210 to RGB-mode (with press MODE button)

    5. Switch the MEM.channel to Channel 0 (with up or down arrow on Minolta-CA210)

    6. The LCD-indicator on Minolta-CA210 will show x = 283 20, y = 297 20Y = 210 20 cd/m2 c. Adjust Color2 (57000K) color-temperature

    7. Switch the Minolta-CA210 to RGB-mode (with press MODE button)

    8. Switch the MEM.channel to Channel 0 (with up or down arrow on Minolta-CA210)

    9. The LCD-indicator on Minolta-CA210 will show x = 326 20, y = 349 20Y = 230 20 cd/m2 10. Move cursor to Exit/Save sub-menu and press MENU key to save adjust value and exit.

    Turn the POWER-button off to on to quit from factory mode.

    Max Brightness measurement: >250 cd/ Test conditions:

    a. Switch to the full white pattern, in user mode main menu: 1. Set Red, Green, and Blue to the max. 2. Set Brightness, Contrast to the max.

    b. The Minimum brightness is: < 40% of Max luminance (max luminance = max contrast + max brightness) Test conditions: Set Brightness, Contrast to the min.

  • 19" LCD Color Monitor Dell 1908FPC

    54

    11. ISP Instruction

    11.1 Software requirement and connection Operating system requirement (1) Microsoft windows OS. (2) 100M free hard-drive space. (3) 1 free parallel port for DDC2BI communication.

    The hardware Connection

    Note: VGA and DVI must not connect at the same time.

    The relevant soft List

    ISP_CODE

    Connect to PC LPT

    12V Input

    Link to Dell

    VGA connector

    Link to Dell

    DVI connector

  • 19" LCD Color Monitor Dell 1908FPC

    55

    11.2 Install the software (Gprobe 5.0) for ISP Writer

    A. Double-click the Install software

    Select the folder where you would like Genesis Gprobe 5 to be installed

    Completing the Genesis Gprobe 5 setup wizard

    Note: After finishing the installation, you must restart the PC.

  • 19" LCD Color Monitor Dell 1908FPC

    56

    B. Next, install the Update software

    Completing the update 1 for Genesis Gprobe 5.0 setup wizard

  • 19" LCD Color Monitor Dell 1908FPC

    57

    11.3 Run program

    After the installation, a short-cut icon will appear on your desktop, double click it will run the

    program.

    Note: Firstly, you can check the IC normal or not by inputting the test in the position ,

    where to load MCU software. Click , if you can see test pass in the blank, the IC is OK!

    (1). Select Options Connection Setup F10:

    Set the Connection Settings Connection Device to parallel, click OK!

  • 19" LCD Color Monitor Dell 1908FPC

    58

    (2). Select Commands Batch:

  • 19" LCD Color Monitor Dell 1908FPC

    59

    Click to select MCU software in Dell ISP_CODE, please per as the follow fig

    Click open.

    (3). Unplug the Dell AC power, until the LED indicator is off, press Enter or Execute button, when the .txt of MCU

    is in gray, for example , re-plug Dell AC power, Writer is in

    progress.

    (4). When appear the Batch: Command Successful, Writer is complete!

    The text must be matching with the

    panel type of the monitor; such as if

    the panel used is LM190E08-TLB2

    LPL. You have to choose

    Dell_1908FP_LPL.txt

  • 19" LCD Color Monitor Dell 1908FPC

    60

    12. Exploded View

  • 19" LCD Color Monitor Dell 1908FPC

    61

    13. BOM List T97GGHHKFDDDPN

    Location Part Number Description

    012G6059 1 RUBBER 012G6212 2 RUBBER PAD 023G3178700 3A logo 033G4885 VH L BUTTON RELEASE 034G1757 VH B REAR VENT LEFT 034G1758 VH B REAR VENT RIGHT 040G 581 26704 SHIPPING LABEL 041G 68508 A control card 044G9003109 CORNER PAPER 045G 77 3 PE PACKING 052G 1150 C INSULATING TAPE 052G 1186 SMALL TAPE 052G6019 1 INSULATING TAPE 052G6022 1500 SMALL TAPE 070GHDCP500HDC HDCP CODE 089G 175523 G USB CABLE 1.8M

    E08902 089G 728LAA 2D SIGNAL CABLE

    E08903 089G1748CAA 1D DVI CABLE

    E08901 089G402A18NYHD POWER CORD

    0M1G 130 4120 SCREW M3X5 0M1G 130 6225 CR3 SCREW 0M1G 330 4120 SCREW 42A9930008 0M1G1730 6120 SCREW,42-D020523 0M1G1730 6120 SCREW,42-D020523 0M1G2940 10225 CR3 SCREW

    E750 750GLG90E8L21Z000D PANEL LM190E08-TLL2 KR LPL

    CBPC7GGCDFQ MAIN BOARD G2254-A-2-X-1-071029 040G 45762412B CBPC LABEL

    CN401 033G3802 5B Y W WEAFER

    CN403 033G8019 8C FPC/FFC CONN

    CN501 033G8043 24 BH W CONNECTOR

    CN601 033G804312C HR Wafer 2004 2X6(PLUG) HR

    055G 23524 WELDING FLUX WITHOUT PB 055G 100611 TIN STICK W/O PB 055G 100613 TIN THREAD

    C601 067G405V221 4P 105 220uF M 25V C602 067G405V221 4P 105 220uF M 25V

  • 19" LCD Color Monitor Dell 1908FPC

    62

    C611 067G405V221 4P 105 220uF M 25V CN202 088G 35315F HJ SOC SUBD H 15P F

    CN201 088G 35424F J DVI 24PIN CONN F ATTACHED SCREW

    X301 093G 22 53 J 14.31818MHZ/32PF/49US

    U401 056G 562 98 GM5626H-LF-AA

    U601 056G 563 7 IC AIC1084-33PMTR-R AIC

    U602 056G 563 31 IC AZ1117D-1.8-E1

    U203 056G 614 1 74HC4052D S016 PHLIPS

    U302 056G 643 13 G691L400T73UF SOT-23 GMT

    U201 056G1133 34 M24C02-WMN6TP

    U202 056G1133 34 M24C02-WMN6TP

    U403 056G1133 56 M24C16-WMN6TP

    U402 056G1133

    81(LDLGHT9GHQ3) SST25LF020A-33-4C-SAE

    Q201 057G 417 4 PMBS3904/PHILIPS-SMT(04)

    Q202 057G 417 4 PMBS3904/PHILIPS-SMT(04)

    Q206 057G 417 4 PMBS3904/PHILIPS-SMT(04)

    Q403 057G 417 4 PMBS3904/PHILIPS-SMT(04)

    Q404 057G 417 4 PMBS3904/PHILIPS-SMT(04)

    Q603 057G 417 4 PMBS3904/PHILIPS-SMT(04)

    Q601 057G 417 4 PMBS3904/PHILIPS-SMT(04)

    Q602 057G 763501 FET AM2321P ANALOG POWER

    R615 061G0402000 RST CHIPR 0 OHM +-5% 1/16W

    R614 061G0402000 RST CHIPR 0 OHM +-5% 1/16W

    R606 061G0402000 RST CHIPR 0 OHM +-5% 1/16W

    R243 061G0402000 RST CHIPR 0 OHM +-5% 1/16W

    R331 061G0402000 RST CHIPR 0 OHM +-5% 1/16W

    R404 061G0402000 RST CHIPR 0 OHM +-5% 1/16W

    R208 061G0402100 RST CHIPR 10 OHM +-5% 1/16W

    R207 061G0402100 RST CHIPR 10 OHM +-5% 1/16W

    R209 061G0402100 RST CHIPR 10 OHM +-5% 1/16W

    R301 061G0402100 RST CHIPR 10 OHM +-5% 1/16W

    R206 061G0402100 RST CHIPR 10 OHM +-5% 1/16W

    R205 061G0402100 RST CHIPR 10 OHM +-5% 1/16W

    R204 061G0402100 RST CHIPR 10 OHM +-5% 1/16W

    R203 061G0402100 RST CHIPR 10 OHM +-5% 1/16W

    R202 061G0402100 RST CHIPR 10 OHM +-5% 1/16W

    R416 061G0402100 2F RST CHIPR 10KOHM +-1% 1/16W

    R417 061G0402100 2F RST CHIPR 10KOHM +-1% 1/16W

    R222 061G0402101 RST CHIPR 100 OHM +-5% 1/16W

  • 19" LCD Color Monitor Dell 1908FPC

    63

    R224 061G0402101 RST CHIPR 100 OHM +-5% 1/16W

    R408 061G0402101 RST CHIPR 100 OHM +-5% 1/16W

    R407 061G0402101 RST CHIPR 100 OHM +-5% 1/16W

    R340 061G0402101 RST CHIPR 100 OHM +-5% 1/16W

    R339 061G0402101 RST CHIPR 100 OHM +-5% 1/16W

    R335 061G0402101 RST CHIPR 100 OHM +-5% 1/16W

    R334 061G0402101 RST CHIPR 100 OHM +-5% 1/16W

    R311 061G0402101 RST CHIPR 100 OHM +-5% 1/16W

    R310 061G0402101 RST CHIPR 100 OHM +-5% 1/16W

    R309 061G0402101 RST CHIPR 100 OHM +-5% 1/16W

    R251 061G0402101 RST CHIPR 100 OHM +-5% 1/16W

    R250 061G0402101 RST CHIPR 100 OHM +-5% 1/16W

    R249 061G0402101 RST CHIPR 100 OHM +-5% 1/16W

    R248 061G0402101 RST CHIPR 100 OHM +-5% 1/16W

    R232 061G0402101 RST CHIPR 100 OHM +-5% 1/16W

    R230 061G0402101 RST CHIPR 100 OHM +-5% 1/16W

    R228 061G0402101 RST CHIPR 100 OHM +-5% 1/16W

    R604 061G0402102 RST CHIPR 1 KOHM +-5% 1/16W

    R603 061G0402102 RST CHIPR 1 KOHM +-5% 1/16W

    R602 061G0402102 RST CHIPR 1 KOHM +-5% 1/16W

    R329 061G0402102 RST CHIPR 1 KOHM +-5% 1/16W

    R242 061G0402102 RST CHIPR 1 KOHM +-5% 1/16W

    R431 061G0402103 RST CHIPR 10 KOHM +-5% 1/16W

    R418 061G0402103 RST CHIPR 10 KOHM +-5% 1/16W

    R341 061G0402103 RST CHIPR 10 KOHM +-5% 1/16W

    R262 061G0402103 RST CHIPR 10 KOHM +-5% 1/16W

    R261 061G0402103 RST CHIPR 10 KOHM +-5% 1/16W

    R245 061G0402103 RST CHIPR 10 KOHM +-5% 1/16W

    R214 061G0402103 RST CHIPR 10 KOHM +-5% 1/16W

    R211 061G0402103 RST CHIPR 10 KOHM +-5% 1/16W

    R201 061G0402103 RST CHIPR 10 KOHM +-5% 1/16W

    R608 061G0402104 RST CHIPR 100 KOHM +-5% 1/16W

    R411 061G0402220 0F RST CHIPR 220 OHM +-1% 1/16W

    R412 061G0402220 0F RST CHIPR 220 OHM +-1% 1/16W

    R413 061G0402220 0F RST CHIPR 220 OHM +-1% 1/16W

    R414 061G0402220 0F RST CHIPR 220 OHM +-1% 1/16W

    R420 061G0402220 2F RST CHIPR 22KOHM +-1% 1/16W

    R421 061G0402220 2F RST CHIPR 22KOHM +-1% 1/16W

    R238 061G0402221 RST CHIPR 220 OHM +-5% 1/16W

    R239 061G0402221 RST CHIPR 220 OHM +-5% 1/16W

  • 19" LCD Color Monitor Dell 1908FPC

    64

    R415 061G0402221 RST CHIPR 220 OHM +-5% 1/16W

    R241 061G0402222 RST CHIPR 2.2 KOHM +-5% 1/16W

    R240 061G0402222 RST CHIPR 2.2 KOHM +-5% 1/16W

    R217 061G0402223 RST CHIPR 22 KOHM +-5% 1/16W

    R419 061G0402300 2F RST CHIPR 30KOHM +-1% 1/16W

    R422 061G0402300 2F RST CHIPR 30KOHM +-1% 1/16W

    R257 061G0402330 RST CHIPR 33 OHM +-5% 1/16W

    R256 061G0402330 RST CHIPR 33 OHM +-5% 1/16W

    R216 061G0402330 RST CHIPR 33 OHM +-5% 1/16W

    R215 061G0402330 RST CHIPR 33 OHM +-5% 1/16W

    R218 061G0402333 RST CHIPR 33 KOHM +-5% 1/16W

    R423 061G0402471 RST CHIPR 470 OHM +-5% 1/16W

    R315 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W

    R316 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W

    R317 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W

    R318 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W

    R319 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W

    R323 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W

    R324 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W

    R409 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W

    R410 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W

    R424 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W

    R601 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W

    R605 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W

    R212 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W

    R213 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W

    R219 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W

    R226 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W

    R227 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W

    R236 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W

    R252 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W

    R253 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W

    R305 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W

    R306 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W

    R307 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W

    R308 061G0402472 RST CHIPR 4.7 KOHM +-5% 1/16W

    R609 061G0402473 RST CHIPR 47 KOHM +-5% 1/16W

    R220 061G0402750 RST CHIPR 75 OHM +-5% 1/16W

    R223 061G0402750 RST CHIPR 75 OHM +-5% 1/16W

    R229 061G0402750 RST CHIPR 75 OHM +-5% 1/16W

  • 19" LCD Color Monitor Dell 1908FPC

    65

    R233 061G0402750 RST CHIPR 75 OHM +-5% 1/16W

    R234 061G0402750 RST CHIPR 75 OHM +-5% 1/16W

    R235 061G0402750 RST CHIPR 75 OHM +-5% 1/16W

    R302 061G0603249 0F RST CHIPR 249 OHM +-1% 1/10W

    R501 061G0805750 RST CHIPR 75 OHM +-5% 1/8W

    C212 065G040210312T CAP 0402 10NF K 16V X7R TAIYO YUDEN

    C217 065G0402220 31 CHIP 22PF 50V NPO

    C218 065G0402220 31 CHIP 22PF 50V NPO

    C228 065G0402330 31 CHIP CAP 0402 33pF J 50V NPO

    C229 065G0402330 31 CHIP CAP 0402 33pF J 50V NPO

    C230 065G0402330 31 CHIP CAP 0402 33pF J 50V NPO

    C231 065G0402330 31 CHIP CAP 0402 33pF J 50V NPO

    C232 065G0402330 31 CHIP CAP 0402 33pF J 50V NPO

    C233 065G0402330 31 CHIP CAP 0402 33pF J 50V NPO

    C327 065G0402330 31 CHIP CAP 0402 33pF J 50V NPO

    C328 065G0402470 31 MLCC 0402 CAP 47PF J 50V NPO

    C210 065G0402473 12 CHIP 0.047uF 16V X7R

    C211 065G0402473 12 CHIP 0.047uF 16V X7R

    C213 065G0402473 12 CHIP 0.047uF 16V X7R

    C215 065G0402473 12 CHIP 0.047uF 16V X7R

    C216 065G0402473 12 CHIP 0.047uF 16V X7R

    C407 065G0603102 32 1000PF +-10% 50V X7R

    C406 065G0603102 32 1000PF +-10% 50V X7R

    C405 065G0603102 32 1000PF +-10% 50V X7R

    C404 065G0603102 32 1000PF +-10% 50V X7R

    C403 065G0603102 32 1000PF +-10% 50V X7R

    C202 065G0603104 12 CER2 0603 X7R 16V 100N P

    C618 065G0603104 12 CER2 0603 X7R 16V 100N P

    C613 065G0603104 12 CER2 0603 X7R 16V 100N P

    C612 065G0603104 12 CER2 0603 X7R 16V 100N P

    C608 065G0603104 12 CER2 0603 X7R 16V 100N P

    C604 065G0603104 12 CER2 0603 X7R 16V 100N P

    C311 065G0603104 12 CER2 0603 X7R 16V 100N P

    C310 065G0603104 12 CER2 0603 X7R 16V 100N P

    C308 065G0603104 12 CER2 0603 X7R 16V 100N P

    C307 065G0603104 12 CER2 0603 X7R 16V 100N P

    C306 065G0603104 12 CER2 0603 X7R 16V 100N P

    C305 065G0603104 12 CER2 0603 X7R 16V 100N P

    C304 065G0603104 12 CER2 0603 X7R 16V 100N P

    C303 065G0603104 12 CER2 0603 X7R 16V 100N P

  • 19" LCD Color Monitor Dell 1908FPC

    66

    C302 065G0603104 12 CER2 0603 X7R 16V 100N P

    C245 065G0603104 12 CER2 0603 X7R 16V 100N P

    C227 065G0603104 12 CER2 0603 X7R 16V 100N P

    C222 065G0603104 12 CER2 0603 X7R 16V 100N P

    C221 065G0603104 12 CER2 0603 X7R 16V 100N P

    C220 065G0603104 12 CER2 0603 X7R 16V 100N P

    C219 065G0603104 12 CER2 0603 X7R 16V 100N P

    C214 065G0603104 12 CER2 0603 X7R 16V 100N P

    C209 065G0603104 12 CER2 0603 X7R 16V 100N P

    C312 065G0603104 12 CER2 0603 X7R 16V 100N P

    C603 065G0603104 12 CER2 0603 X7R 16V 100N P

    C502 065G0603104 12 CER2 0603 X7R 16V 100N P

    C408 065G0603104 12 CER2 0603 X7R 16V 100N P

    C401 065G0603104 12 CER2 0603 X7R 16V 100N P

    C333 065G0603104 12 CER2 0603 X7R 16V 100N P

    C332 065G0603104 12 CER2 0603 X7R 16V 100N P

    C330 065G0603104 12 CER2 0603 X7R 16V 100N P

    C326 065G0603104 12 CER2 0603 X7R 16V 100N P

    C324 065G0603104 12 CER2 0603 X7R 16V 100N P

    C323 0